What Should I Do If Cosmos 4K SE/ Nebula X1 Has No Sound?
Try the following steps to see if they help:
1. Switch between various projection modes to see if your projector can play sound.
2. Press the Volume Up button on your projector remote .
3. In Projection Mode, connect your projector to an external Bluetooth speaker by going to Settings > Display and Sound > Sound > Turn On Bluetooth Speaker Mode.
If the above solutions cannot solve your issue, please contact Nebula Customer Support at support@seenebula.com for further assistance.


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